77940140

素因数分解:

$2^2\times 5^1\times {\mathrm{1889}}^1\times {\mathrm{2063}}^1$

素因数の和:3961

約数の個数: 24

約数和(自身を含む): 163840320

約数和(自身を除く): 85900180

約数列:

[1, 2, 4, 5, 10, 20, 1889, 2063, 3778, 4126, 7556, 8252, 9445, 10315, 18890, 20630, 37780, 41260, 3897007, 7794014, 15588028, 19485035, 38970070, 77940140]

約数ペア:

[(1, 77940140), (2, 38970070), (4, 19485035), (5, 15588028), (10, 7794014), (20, 3897007), (1889, 41260), (2063, 37780), (3778, 20630), (4126, 18890), (7556, 10315), (8252, 9445)]